Service jack



FIG. 1 is a left side perspective view of a service jack showing our new design;

FIG. 2 is a right side view of the service jack as shown in FIG. 1;

FIG. 3 is a left side view of the service jack as shown in FIG. 1;

FIG. 4 is a rear side view of the service jack as shown in FIG. 1;

FIG. 5 is a bottom view of the service jack as shown in FIG. 1;

FIG. 6 is a front view of the service jack as shown in FIG. 1;

FIG. 7 is a perspective view of the service jack as shown in FIG. 1; and,

FIG. 8 is a top view of the service jack as shown in FIG. 1.

The broken lines shown in FIGS. 1-8 show portions of the service jack only and form no part of the claimed design. 

CLAIM The ornamental design for a service jack, as shown and described. 